CN107855781B - Automatic resistance welding equipment - Google Patents
Automatic resistance welding equipment Download PDFInfo
- Publication number
- CN107855781B CN107855781B CN201711283610.7A CN201711283610A CN107855781B CN 107855781 B CN107855781 B CN 107855781B CN 201711283610 A CN201711283610 A CN 201711283610A CN 107855781 B CN107855781 B CN 107855781B
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- blanking
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- 238000003466 welding Methods 0.000 title claims abstract description 67
- 238000005520 cutting process Methods 0.000 claims abstract description 56
- 238000007599 discharging Methods 0.000 claims abstract description 9
- 239000000969 carrier Substances 0.000 claims abstract description 4
- 230000007246 mechanism Effects 0.000 claims description 99
- 239000000463 material Substances 0.000 claims description 23
- 238000009966 trimming Methods 0.000 claims description 8
- 238000003754 machining Methods 0.000 abstract description 2
- 238000003825 pressing Methods 0.000 description 6
- 230000002093 peripheral effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P23/00—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass
- B23P23/04—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass for both machining and other metal-working operations
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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Apparatuses And Processes For Manufacturing Resistors (AREA)
- Resistance Welding (AREA)
Abstract
The invention discloses an automatic resistance welding device, which is used for welding a resistance on a bracket positioned on the outer periphery side of a hollow cylindrical piece; the automatic resistance welding equipment comprises a rack, wherein the top surface of the rack is rotationally connected with a turntable; the top surface of the turntable is provided with a plurality of carriers for clamping and discharging the hollow cylindrical piece and the resistor at intervals along the circumferential direction of the turntable; the side of the rotary table is sequentially provided with a first feeding device for moving and placing the hollow cylindrical part into the corresponding carrier, a second feeding device for moving and placing the resistor into the carrier clamped with the hollow cylindrical part, a welding device for welding the resistor and a bracket of the hollow cylindrical part, a resistor cutting device for cutting the welded resistor and a discharging device for taking away the cut welded part. The automatic welding equipment for the resistors can realize automatic welding between the resistors and the supports of the hollow cylindrical parts, and is high in working efficiency and machining precision.
Description
Technical Field
The invention relates to the technical field of welding automation, in particular to resistance automatic welding equipment.
Background
In the prior art, some electronic devices include a hollow cylindrical member and a resistor, wherein a support is provided on an outer peripheral side of the hollow cylindrical member, and the resistor is connected to the support by welding. When welding, the hollow cylindrical part and the resistor are generally clamped in the carrier respectively, and then welded by welding equipment. However, the work efficiency is relatively low when this welding method is adopted.
Disclosure of Invention
The invention aims to provide automatic resistance welding equipment which can realize automatic welding between a resistor and a bracket of a hollow cylindrical part, and has high working efficiency and high processing precision.
To achieve the purpose, the invention adopts the following technical scheme:
an automatic resistance welding apparatus for welding a resistance to a bracket located on the outer peripheral side of a hollow cylindrical member; the automatic resistance welding equipment comprises a rack, wherein the top surface of the rack is rotationally connected with a turntable; the top surface of the turntable is provided with a plurality of carriers for clamping and discharging the hollow cylindrical parts and resistors at intervals along the circumferential direction of the turntable; the side of revolving stage has set gradually and is used for moving hollow cylinder spare to corresponding first loading attachment in the carrier, be used for moving the resistance to block put hollow cylinder spare second loading attachment in the carrier, be used for carrying out welded welding set with the support of hollow cylinder spare with the resistance, be used for cutting out the resistance after the welding and cut out the device and take off the unloader after cutting out the welding piece.
Further, the first feeding device and the discharging device each comprise:
the first support is connected to the frame;
a first clamping mechanism for clamping the hollow cylindrical member; the first clamping mechanism comprises a pair of first clamping jaws used for clamping the hollow cylindrical piece and a first clamping jaw cylinder which is connected with the pair of first clamping jaws and can drive the pair of first clamping jaws to open and close;
the first driving mechanism is connected with the first clamping mechanism and can drive the first clamping mechanism to rotate and move up and down;
the second driving mechanism is connected between the first support and the first driving mechanism, and can drive the first driving mechanism and the first clamping mechanism to move towards or away from the turntable together.
Further, the first driving mechanism is an integrated rotary cylinder capable of lifting;
the second driving mechanism comprises a screw rod arranged along the horizontal moving direction of the hollow cylindrical piece, a screw rod connecting seat sleeved on the screw rod and capable of moving along the length direction of the screw rod, a first sliding rail arranged in parallel with the screw rod and a motor for driving the screw rod to rotate; the integrated rotary cylinder is connected with the screw rod connecting seat and is in sliding connection with the first sliding rail through the first sliding block.
Further, the second feeding device comprises:
the second support is connected to the frame;
the material belt conveying device is arranged on the second support and is used for conveying the resistor material belt towards the rotary table;
the blanking mechanism is used for cutting off the resistor on the resistor material belt and comprises a blanking female die arranged on the second support, a blanking cutter arranged above the blanking female die and a blanking cylinder connected with the blanking cutter and used for driving the blanking cutter to perform blanking;
the secondary positioning female die is arranged on the second support, is arranged on one side of the blanking female die and is used for carrying out secondary positioning on a resistor cut off on the resistor material belt before entering the carrier;
and the feeding mechanism is connected with the blanking cylinder and can move the resistor in the blanking die into the secondary positioning die and move the resistor in the secondary positioning die into the carrier.
Still further, the feeding mechanism includes:
the first clamping mechanism is connected with the blanking cylinder and used for clamping the resistor in the blanking die, and the second clamping mechanism is used for clamping the resistor in the secondary positioning die; the two second clamping mechanisms comprise a pair of second clamping jaws for clamping the resistor and a second clamping jaw cylinder for driving the second clamping jaws to open and close;
the lifting cylinder is connected with a second clamping mechanism and can drive the second clamping mechanism to move up and down;
the driving cylinder is connected with the blanking cylinder and the lifting cylinder and is used for driving the blanking cylinder, the blanking cutter and the first clamping mechanism to move towards the secondary positioning female die together; and the lifting cylinder and the second clamping mechanism are used for driving the lifting cylinder and the second clamping mechanism to move towards the carrier together.
Still further, the tape conveying apparatus includes:
the roller feeding mechanism is connected to the frame and comprises a driven roller and a driving roller which are arranged up and down on one side of the blanking female die, a motor for driving the driving roller to rotate and a driven roller on the other side of the blanking female die; two ends of the driven roller are respectively connected with a locking component for locking the driven roller; the output end of the motor is connected with the driving roller through a first belt; the driven roller is connected with the driving roller through a second belt;
the material guiding assembly comprises a material platform arranged between the driving roller and the blanking die and a material guiding plate connected to the top surface of the material platform and used for guiding the movement of the resistor material belt.
Further, the welding device is provided with two, and is used for welding two welding points of resistance respectively, the welding device includes:
a welding bracket connected with the frame;
an upper electrode assembly including an upper electrode and an upper electrode fixing block for clamping the upper electrode;
a lower electrode assembly including a lower electrode and a lower electrode fixing block for clamping the lower electrode; the lower electrode corresponds to the upper electrode vertically;
the upper electrode driving cylinder is connected with the upper electrode fixing block and can drive the upper electrode and the upper electrode fixing block to move up and down together; the lower electrode driving cylinder is connected with the lower electrode fixing block and can drive the lower electrode and the lower electrode fixing block to move up and down.
Further, the resistor clipping device includes:
the cutting support is connected to the frame;
the two cutting mechanisms are respectively used for cutting two ends of the resistor, form an included angle, are arranged on the top surface of the cutting support and are in sliding connection with the cutting support;
and the cutting driving cylinder is used for driving the two cutting mechanisms to move towards or away from the rotary table together.
Further, the cutting mechanism comprises a pair of cutting knives which are connected in a cross mode and a cutting cylinder used for driving the pair of cutting knives to open and close.
Still further, the carrier includes:
the carrier comprises a carrier body, wherein the top surface of the carrier body is provided with a clamping groove for clamping a hollow cylindrical piece; an opening for avoiding the bracket is formed in the side part of the clamping groove; the center of the clamping groove is provided with a positioning guide post which can be inserted into the hollow cylindrical piece;
the clamping component is arranged at the opening and used for clamping the resistor, and the clamping component is connected with the carrier body.
The beneficial effects of the invention are as follows: the hollow cylindrical part and the resistor are sequentially moved into the carrier through the first feeding device and the second feeding device, after the welding device welds the resistor with the support of the hollow cylindrical part, the two ends of the resistor are cut through the resistor cutting device, so that the processing of a welded part product is completed, the welded part is taken away through the discharging device, the working efficiency is high, and the product processing precision is high.
Drawings
FIG. 1 is a schematic view of a resistance automatic welding apparatus according to the present invention;
fig. 2 is a schematic structural view of the first feeding device in fig. 1;
FIG. 3 is a schematic view of the first clamping mechanism of FIG. 2;
FIG. 4 is a schematic diagram of the carrier in FIG. 2;
FIG. 5 is a schematic structural view of the second feeding device in FIG. 1;
FIG. 6 is a schematic view of the blanking mechanism and the feeding mechanism in FIG. 5;
FIG. 7 is a schematic view of the belt conveyor of FIG. 5;
fig. 8 is a schematic view of the structure of the cutting die of fig. 5;
FIG. 9 is a schematic structural view of the secondary positioning die of FIG. 5;
FIG. 10 is a schematic view of the welding apparatus of FIG. 1;
fig. 11 is a schematic diagram of the resistor trimming device in fig. 1.
In the figure: a frame 10; a turntable 11; a carrier 20; a carrier body 21; a clamping groove 211; an opening 212; a catch assembly 22; a holding groove 220; positioning guide posts 23; a first catch block 221; a second catch block 222; an elastic collar 223; a first feeding device 30; a first drive mechanism 330; a first slider 331; a first support 340; a cable drag chain 341; a tow chain connection mount 342; a first clamping mechanism 350; a first clamping jaw 351; a first jaw cylinder 352; positioning guide 353; a connection panel 354; a second drive mechanism 360; a first slide rail 361; a fixing base 371; a connection plate 372; an adjusting bolt 373; a guide bar 374; a second slide rail 375; a second slider 376; a second feeding device 40; a resistive material strip 410; a second support 420; a waste material channel 421; a blanking die 430; a female die holder 431; a die insert 432; a die hole 4321; a receiving block 433; avoidance groove 4331; a platen 434; a swage cylinder 435; a secondary positioning female die 440; positioning a female die holder 441; a first die insert 442; a second die insert 443; a protrusion 444; a first clamping groove 4441; a through hole 445; a holding portion 446; a second clamping groove 4461; a tape conveyor 450; driven roller 451; a drive roller 452; a motor 453; driven roller 454; a first belt 455; a second belt 456; a locking assembly 457; a guide assembly 458; a material stage 4581; a guide plate 4582; a blanking cutter 460; a blanking cylinder 461; a first connection seat 462; a second clamping mechanism 470; a second jaw 471; a second jaw cylinder 472; a lifting cylinder 473; a driving cylinder 474; a second connector 475; a first limit stop 476; a welding device 50; a welding bracket 51; an upper electrode assembly 52; a lower electrode assembly 53; an upper electrode driving cylinder 54; a lower electrode driving cylinder 55; an upper electrode 521; an upper electrode fixing block 522; a lower electrode 531; a lower electrode fixing block 532; a resistor clipping device 70; cutting a support 71; a third slide rail 711; a cutting mechanism 72; a cutter 721; a cutting cylinder 722; a support plate 73; a second limit stop 731; a third slider 74; a limit pin 75; and a blanking device 80.
Detailed Description
The technical scheme of the invention is further described below by the specific embodiments with reference to the accompanying drawings.
As shown in fig. 1, an automatic resistance welding apparatus for welding a resistance to a bracket located on the outer peripheral side of a hollow cylindrical member. The automatic resistance welding equipment comprises a rack 10, wherein a turntable 11 is rotatably connected to the top surface of the rack 10; the top surface of the turntable 11 is provided with a plurality of carriers 20 at intervals along the circumferential direction for clamping and discharging the hollow cylindrical member and the resistor; the side of the turntable 11 is provided with a first loading device 30 for moving the hollow cylindrical member into the corresponding carrier 20, a second loading device 40 for moving the resistor into the carrier 20 clamped with the hollow cylindrical member, a welding device 50 for welding the resistor and the bracket of the hollow cylindrical member, a resistor cutting device 70 for cutting the welded resistor, and a blanking device 80 for taking away the cut welded member in sequence.
During welding, the hollow cylindrical part and the resistor are sequentially moved into the carrier 20 through the first feeding device 30 and the second feeding device 40, the resistor and the bracket of the hollow cylindrical part are welded through the welding device 50, and then two ends of the resistor are cut through the resistor cutting device 70, so that the processing of a welded part product is completed; finally, the welding part is taken away through the blanking device 80, so that the working efficiency is high, and the product machining precision is high.
Specifically, in the present invention, as shown in fig. 2 and 3, the first loading device 30 includes a first support 340 connected to the frame 10, a first clamping mechanism 350 for clamping the hollow cylindrical member, a first driving mechanism 330, and a second driving mechanism 360 connected between the first support 340 and the first driving mechanism 330. Wherein the first clamping mechanism 350 comprises a pair of first clamping jaws 351 for clamping the hollow cylindrical member, and a first clamping jaw cylinder 352 connected with the pair of first clamping jaws 351 and capable of driving the pair of first clamping jaws 351 to open and close; the first driving mechanism 330 is connected to the first jaw cylinder 352 and is capable of driving the first jaw cylinder 352 to rotate and move up and down. The positioning guide 353 is connected to the fixed end of the first jaw cylinder 352 via a connection panel 354. The second driving mechanism 360 can drive the first driving mechanism 330 and the first clamping mechanism 350 to move toward or away from the turntable 11 together.
As a preferred embodiment of the present invention, the first driving mechanism 330 is an integrated rotary cylinder capable of being lifted; the second driving mechanism 360 adopts a screw driving structure, namely, comprises a screw arranged along the horizontal moving direction of the hollow cylindrical piece, a screw connecting seat sleeved on the screw and capable of moving along the length direction of the screw, a first sliding rail 361 arranged in parallel with the screw and a motor for driving the screw to rotate; the integrated rotary cylinder is connected with the screw rod connecting seat and is in sliding connection with the first sliding rail 361 through the first sliding block 331.
In order to further improve the accuracy of the movement of the hollow cylindrical member, a cable drag chain 341 is disposed on the first support 340 along the horizontal movement direction of the hollow cylindrical member, one end of the cable drag chain 341 is fixedly connected with the first support 340, and the other end of the cable drag chain 341 is connected with the first driving mechanism 330 through a drag chain connecting seat 342.
At the time of assembly, the height of the first clamping mechanism 350 needs to be adjusted to an optimal position so that the first clamping mechanism 350 can accurately clamp the hollow cylindrical member without damaging the hollow cylindrical member. Therefore, a height adjusting device may be added, the height adjusting device includes a fixing base 371 connected with the first driving mechanism 330, a connecting plate 372 connected with the first slider 331 and the drag chain connecting base 342 and disposed opposite to the fixing base 371, an adjusting bolt 373 screwed at the bottom of the connecting plate 372, and a guide rod 374 connected at the top of the connecting plate 372, wherein the top of the adjusting bolt 373 is abutted with the bottom of the fixing base 371; the guide rod 374 penetrates into the fixing base 371 and serves to guide the fixing base 371 to move up and down. In this way, the fixing base 371 can be pushed to move up and down by the adjusting bolt 373, so that the adjustment of the clamping height of the first clamping mechanism 350 can be realized. During the adjustment process, the bottom end of the guide rod 374 is always positioned within the holder 371. In order to avoid the influence on the feeding accuracy caused by shaking of the first driving mechanism 330 and the first clamping mechanism 350 during the adjustment, two second slide rails 375 may be vertically disposed on one side of the connecting plate 372 facing the fixing seat 371, two second slide blocks 376 are connected on one side of the fixing seat 371 facing the connecting plate 372, and the two second slide blocks 376 are respectively slidably connected with the two second slide rails 375.
In the present invention, as shown in fig. 4, a carrier 20 includes a carrier body 21 and a clamping assembly 22 connected to the carrier body 21 for clamping a resistor, wherein a clamping groove 211 for clamping a hollow cylindrical member is formed on the top surface of the carrier body 21; an opening 212 for avoiding the bracket is formed in the side part of the clamping groove 211; the center of the clamping groove 211 is provided with a positioning guide post 23 which can be inserted into the hollow cylindrical piece; the clamping assembly 22 is disposed at the opening 212, and includes a first clamping block 221 and a second clamping block 222 that are spliced with each other and form a clamping groove 220 on the top surface for clamping the resistor, and an elastic collar 223 sleeved outside the first clamping block 221 and the second clamping block 222, where the first clamping block 221 is connected with the carrier body 21, and one end of the second clamping block 222 far away from the clamping groove 220 is rotationally connected with the carrier body 21. Thus, the resistor can be firmly clamped.
After the hollow cylindrical member is moved into the carrier 20 by the first loading device 30, the turntable 11 rotates, the carrier 20 is moved to the second loading device 40, and the resistor is moved into the carrier 20 by the second loading device 40. Specifically, as shown in fig. 5 to 9, the second feeding device 40 includes a second support 420 connected to the frame 10, a material belt conveying device 450 for conveying the resistor material belt 410, a blanking mechanism for cutting off the resistor on the resistor material belt 410, a secondary positioning die 440, and a feeding and taking mechanism. Wherein, the blanking mechanism comprises a blanking die 430 arranged on the second support 420, a blanking tool 460 positioned above the blanking die 430, and a blanking cylinder 461 connected with the blanking tool 460 and used for driving the blanking tool 460 to perform blanking; the secondary positioning die 440 is disposed on the second support 420 and located at one side of the blanking die 430, and is used for performing secondary positioning on the resistor cut on the resistor strip 410 before entering the carrier 20; the feeding mechanism is connected with the blanking cylinder 461 and is capable of moving the resistor in the blanking die 430 into the secondary positioning die 440 and moving the resistor in the secondary positioning die 440 into the carrier 20.
In the second feeding device 40, the belt conveying device 450 is disposed on the second support 420, and includes a roller feeding mechanism and a guide assembly 458 connected to the frame 10. The roller feeding mechanism comprises a driven roller 451 and a driving roller 452 which are arranged up and down and are positioned on one side of the blanking female die 430, a motor 453 for driving the driving roller 452 to rotate and a driven roller 454 positioned on the other side of the blanking female die 430; two ends of the driven roller 451 are respectively connected with a locking assembly 457 for locking the driven roller 451; the output end of the motor 453 is connected with the driving roller 452 through a first belt 455; the driven roller 454 is connected with the driving roller 452 through a second belt 456. A scrap chute 421 is provided obliquely below the driven roller 454 to guide the trimmed resistive strip 20 into the scrap drum. The guide assembly 458 includes a table 4581 disposed between the drive roller 452 and the die 430, and a guide plate 4582 coupled to a top surface of the table 4581 for guiding movement of the resistive strip 410.
In the second feeding device 40, the blanking die 430 includes a die holder 431 connected to the second support 420, a die insert 432 connected to the die holder 431, and a fixing device connected to the die holder 431 and used for fixing the resistor strip 410 located on the top surface of the die insert 432. Wherein the top surface of the die insert 432 is the same height as the top surface of the table 4581; a receiving block 433 for receiving a resistor cut from the resistor material tape 410 is arranged in the die hole 4321 of the die insert 432, the receiving block 433 is connected with the die seat 431, and an avoidance groove 4331 is formed in the top surface of the receiving block 433 so as to be convenient for taking out the resistor. The fixing device comprises a pressing plate 434 arranged above the die insert 432 and a pressing cylinder 435 connected with the pressing plate 434 and used for driving the pressing plate 434 to move towards or away from the die insert 432, and the pressing plate 434 is provided with a second opening for exposing the die hole 4321; the pressing cylinder 435 is connected with the die holder 431.
In the second feeding device 40, the secondary positioning die 440 includes a positioning die holder 441 connected to the second support 420, and a first die insert 442 and a second die insert 443 connected to the positioning die holder 441, wherein a protrusion 444 is disposed at a top center of the first die insert 442, and a first clamping groove 4441 is disposed at a top surface of the protrusion 444; through holes 445 are formed on both sides of the protrusion 444; two clamping parts 446 are symmetrically arranged on the top surface of the second die insert 443, and the two clamping parts 446 respectively pass through the two through holes 445 and are arranged on two sides of the bulge 444; the top surfaces of the two clamping portions 446 are respectively provided with a second clamping groove 4461, and the two second clamping grooves 4461 are respectively opposite to the first clamping grooves 4441. During operation, the resistor is arranged in the first clamping groove 4441 and the two second clamping grooves 4461, so that the resistor is accurately positioned for the second time, and the resistor can be accurately fed into the carrier 20.
In the second feeding device 40, the feeding mechanism includes two second clamping mechanisms 470, a lifting cylinder 473 and a driving cylinder 474.
Wherein the first and second clamping mechanisms 470 are connected with the blanking cylinder 461 and are used for clamping the resistor in the blanking die 430; the second clamping mechanism 470 is used to clamp the resistor in the secondary positioning die 440. The two second clamping mechanisms 470 each include a pair of second clamping jaws 471 for clamping the resistor, and a second clamping jaw cylinder 472 for driving the pair of second clamping jaws 471 to open and close. The first second clamping jaw cylinder 472 is connected with the first driving device 461 through a first connecting seat 462 and is used for clamping the resistor in the blanking die 30; the blanking tool 460 is connected to the first connecting seat 462 and is offset from the corresponding second jaw 471. Therefore, the cut resistor can be directly clamped for movement after cutting, the working time is greatly shortened, and the working efficiency is improved. The second clamping jaw cylinder 472 is connected with the second driving device 73 through a second connecting seat 475 and is used for clamping the resistor in the secondary positioning female die 40; the second driving device 473 can drive the second clamping mechanism 470 to move up and down. The first connecting seat 462 and the second connecting seat 475 are connected with a first limit stop 476 for limiting the resistor, and the first limit stop 476 is located between a corresponding pair of second clamping jaws 471.
The driving cylinder 474 is connected with the blanking cylinder 461 and the lifting cylinder 473, and is used for driving the blanking cylinder 461, the blanking tool 460 and the first and second clamping mechanisms 470 to move together towards the secondary positioning female die 440; and for driving the lifting cylinder 473 and the second clamping mechanism 470 to move together towards the carrier 20.
After the resistor is fed into the carrier 20 by the second feeding device 40, the turntable 11 rotates, the carrier 20 is moved to the welding device 50, and the resistor in the carrier 20 is welded to the bracket outside the hollow cylindrical member by the welding device 50. Specifically, as shown in fig. 10, the welding device 50 is provided with two welding points for welding the two welding points of the resistor, respectively, and the welding device 50 includes a welding bracket 51 connected to the frame 10, an upper electrode assembly 52, a lower electrode assembly 53, and an upper electrode driving cylinder 54 and a lower electrode driving cylinder 55 connected to the welding bracket 51. Wherein, the upper electrode assembly 52 includes an upper electrode 521 and an upper electrode fixing block 522 for fixing the upper electrode 521. The lower electrode assembly 53 includes a lower electrode 531 and a lower electrode fixing block 532 for fixing the lower electrode 531; the lower electrode 531 vertically corresponds to the upper electrode 521. The upper electrode driving cylinder 54 is connected to the upper electrode fixing block 522 and is used for driving the upper electrode 521 and the upper electrode fixing block 522 to move up and down together; the lower electrode driving cylinder 55 is connected to the lower electrode fixing block 532 and drives the lower electrode 531 and the lower electrode fixing block 532 to move up and down.
After the welding by the welding device 50 is completed, the turntable 11 is rotated, the carrier 20 is moved to the resistor cutting device 70, and both ends of the welded resistor are cut off by the resistor cutting device 70. Specifically, as shown in fig. 11, the resistor trimming device 70 includes a trimming support 71 connected to the frame 10, two trimming mechanisms 72 for trimming both ends of the resistor, respectively, and a trimming driving cylinder for driving the two trimming mechanisms 72 to move together toward or away from the turntable 11. Wherein, two cutting mechanisms 72 form an included angle and are arranged on the top surface of the cutting support 71 and are in sliding connection with the cutting support 71. Both cutting mechanisms 72 include a pair of cutting blades 721 cross-connected and a cutting cylinder 722 for driving the pair of cutting blades 721 to open and close.
In order to realize the smooth sliding of the two cutting mechanisms 72, the two cutting mechanisms 72 are fixed on the supporting plate 73, two third sliding rails 711 are arranged on the cutting support 71, and the supporting plate 73 is respectively connected with the two third sliding rails 711 in a sliding manner through two third sliding blocks 74. In addition, a second limit stop 731 is connected to a side portion of the support plate 73, and a limit pin 75 for corresponding to the second limit stop 731 is connected to the cutting support 71, so as to ensure that the two cutting mechanisms 72 are accurately moved to the preset positions.
After the resistor is cut by the resistor cutting device 70, the turntable 11 rotates, the carrier 20 is moved to the blanking device 80, and the welded part is taken out by the blanking device 80. The structure of the blanking device 80 is the same as that of the first feeding device 30, and will not be described herein.
The technical principle of the present invention is described above in connection with the specific embodiments. The description is made for the purpose of illustrating the general principles of the invention and should not be taken in any way as limiting the scope of the invention. Other embodiments of the invention will be apparent to those skilled in the art from consideration of this specification without undue burden.
Claims (6)
1. The automatic resistance welding equipment is used for welding the resistance on the bracket positioned on the outer periphery side of the hollow cylindrical piece; the automatic resistance welding equipment is characterized by comprising a rack (10), wherein the top surface of the rack (10) is rotatably connected with a turntable (11); the top surface of the turntable (11) is provided with a plurality of carriers (20) used for clamping and discharging the hollow cylindrical piece and the resistor at intervals along the circumferential direction of the turntable; the side part of the rotary table (11) is sequentially provided with a first feeding device (30) for moving and placing the hollow cylindrical part into the corresponding carrier (20), a second feeding device (40) for moving and placing the resistor into the carrier (20) with the hollow cylindrical part clamped, a welding device (50) for welding the resistor and a bracket of the hollow cylindrical part, a resistor cutting device (70) for cutting the welded resistor and a discharging device (80) for taking away the cut welded part;
the first feeding device (30) and the discharging device (80) comprise:
a first support (340) connected to the frame (10);
a first clamping mechanism (350) for clamping the hollow cylindrical member; the first clamping mechanism (350) comprises a pair of first clamping jaws (351) for clamping the hollow cylindrical piece, and a first clamping jaw cylinder (352) which is connected with the pair of first clamping jaws (351) and can drive the pair of first clamping jaws (351) to open and close;
a first driving mechanism (330) connected to the first jaw cylinder (352) and capable of driving the first jaw cylinder to rotate and move up and down;
a second driving mechanism (360) connected between the first support (340) and the first driving mechanism (330), wherein the second driving mechanism (360) can drive the first driving mechanism (330) and the first clamping mechanism (350) to move towards or away from the turntable (11) together;
the second feeding device (40) comprises:
a second support (420) connected to the frame (10);
a tape conveying device (450) arranged on the second support (420), wherein the tape conveying device (450) is used for conveying the resistor tape (410) towards the turntable (11);
the blanking mechanism is used for cutting off the resistor on the resistor material belt (410) and comprises a blanking female die (430) arranged on the second support (420), a blanking cutter (460) arranged above the blanking female die (430) and a blanking cylinder (461) connected with the blanking cutter (460) and used for driving the blanking cutter (460) to perform blanking;
the secondary positioning female die (440) is arranged on the second support (420), and the secondary positioning female die (440) is arranged on one side of the blanking female die (430) and is used for secondarily positioning a resistor cut off on the resistor material belt (410) before entering the carrier (20);
the feeding mechanism is connected with the blanking cylinder (461) and can move the resistor in the blanking die (430) into the secondary positioning die (440) and move the resistor in the secondary positioning die (440) into the carrier (20);
the feeding mechanism comprises:
two second clamping mechanisms (470), wherein a first second clamping mechanism (470) is connected with the blanking cylinder (461) and is used for clamping the resistor in the blanking die (430), and a second clamping mechanism (470) is used for clamping the resistor in the secondary positioning die (440); both the second clamping mechanisms (470) comprise a pair of second clamping jaws (471) for clamping the resistor, and a second clamping jaw cylinder (472) for driving the second clamping jaws (471) to open and close;
a lifting cylinder (473), wherein the lifting cylinder (473) is connected to a second clamping mechanism (470) and can drive the second clamping mechanism (470) to move up and down;
a driving cylinder (474), wherein the driving cylinder (474) is connected with the blanking cylinder (461) and the lifting cylinder (473) and is used for driving the blanking cylinder (461), the blanking cutter (460) and the first second clamping mechanism (470) to move towards the secondary positioning female die (440) together; and for driving the lifting cylinder (473) and the second clamping mechanism (470) to move together towards the carrier (20);
the carrier (20) comprises:
the carrier comprises a carrier body (21), wherein a clamping groove (211) for clamping a hollow cylindrical part is formed in the top surface of the carrier body (21); an opening (212) for avoiding the bracket is formed in the side part of the clamping groove (211); the center of the clamping groove (211) is provided with a positioning guide post (23) which can be inserted into the hollow cylindrical piece;
and the clamping assembly (22) is arranged at the opening (212) and used for clamping the resistor, and the clamping assembly (22) is connected with the carrier body (21).
2. The apparatus of claim 1, wherein,
the first driving mechanism (330) is an integrated rotary cylinder capable of lifting;
the second driving mechanism (360) comprises a screw rod arranged along the horizontal moving direction of the hollow cylindrical piece, a screw rod connecting seat sleeved on the screw rod and capable of moving along the length direction of the screw rod, a first sliding rail (361) arranged in parallel with the screw rod and a motor for driving the screw rod to rotate; the integrated rotary cylinder is connected with the screw rod connecting seat and is in sliding connection with the first sliding rail (361) through the first sliding block (331).
3. The resistance automatic welding apparatus according to claim 1, wherein the web conveying device (450) includes:
the roller feeding mechanism is connected to the frame (10) and comprises a driven roller (451) and a driving roller (452) which are arranged up and down on one side of the blanking die (430), a motor (453) for driving the driving roller (452) to rotate and a driven roller (454) on the other side of the blanking die (430); two ends of the driven roller (451) are respectively connected with a locking assembly (457) for locking the driven roller; the output end of the motor (453) is connected with the driving roller (452) through a first belt (455); the driven roller (454) is connected with the driving roller (452) through a second belt (456);
the material guiding assembly (458), the material guiding assembly (458) comprises a material platform (4581) arranged between the driving roller (452) and the blanking die (430), and a material guiding plate (4582) connected to the top surface of the material platform (4581) and used for guiding the movement of the resistance material belt (410).
4. The resistance automatic welding apparatus according to claim 1, wherein the welding device (50) is provided with two, and is used for welding two welding points of a resistance, respectively, the welding device (50) comprising:
a welding bracket (51) connected with the frame (10);
an upper electrode assembly (52), the upper electrode assembly (52) including an upper electrode (521) and an upper electrode fixing block (522) for clamping the upper electrode (521);
a lower electrode assembly (53), the lower electrode assembly (53) including a lower electrode (531) and a lower electrode fixing block (532) for clamping the lower electrode (531); the lower electrode (531) corresponds to the upper electrode (521) vertically;
an upper electrode driving cylinder (54) and a lower electrode driving cylinder (55) connected to the welding bracket (51), wherein the upper electrode driving cylinder (54) is connected with the upper electrode fixing block (522) and can drive the upper electrode (521) and the upper electrode fixing block (522) to move up and down together; the lower electrode driving cylinder (55) is connected to the lower electrode fixing block (532) and can drive the lower electrode (531) and the lower electrode fixing block (532) to move up and down.
5. The resistance automatic welding apparatus according to claim 1, wherein the resistance trimming means (70) includes:
a cutting support (71) connected to the frame (10);
two cutting mechanisms (72) respectively used for cutting two ends of the resistor, wherein the two cutting mechanisms (72) are arranged on the top surface of the cutting support (71) at an included angle and are in sliding connection with the cutting support (71);
and the cutting driving cylinder is used for driving the two cutting mechanisms (72) to move towards or away from the rotary table (11) together.
6. The resistance automatic welding apparatus according to claim 5, wherein the cutting mechanism (72) includes a pair of cutting blades (721) cross-connected and a cutting cylinder (722) for driving the pair of cutting blades (721) to open and close.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711283610.7A CN107855781B (en) | 2017-12-07 | 2017-12-07 | Automatic resistance welding equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711283610.7A CN107855781B (en) | 2017-12-07 | 2017-12-07 | Automatic resistance welding equipment |
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| CN107855781A CN107855781A (en) | 2018-03-30 |
| CN107855781B true CN107855781B (en) | 2024-01-16 |
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| CN108466062A (en) * | 2018-06-21 | 2018-08-31 | 都函 | A kind of automatic machining device |
| CN109822202B (en) * | 2019-02-27 | 2020-02-14 | 常熟理工学院 | Resistance welding machine of automatic feeding of multifunctional electric tool saw blade |
| CN110116310B (en) * | 2019-04-24 | 2024-02-20 | 宁波斯蒂罗科技有限公司 | Cutting welding device |
| CN111069756B (en) * | 2020-01-19 | 2025-03-14 | 苏州工业职业技术学院 | Electrode clamping welding mechanism |
| CN111805113B (en) * | 2020-07-16 | 2025-05-06 | 珠海市赛科自动化有限公司 | Resistor assembly machine |
| CN112719719B (en) * | 2021-02-06 | 2024-10-22 | 中山市立达金属制品有限公司 | Automatic welding equipment for hardware bracket |
| CN112828432B (en) * | 2021-02-23 | 2023-12-08 | 昆山一鼎工业科技有限公司 | Welding system for continuous automatic discharging automatic resistance welding equipment |
| CN114453753A (en) * | 2022-01-26 | 2022-05-10 | 芜湖固高自动化技术有限公司 | Automatic resistance card welding equipment |
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